fix: Schema compatibility - emoji → icon column rename

Production Outline DB uses 'icon' column instead of 'emoji' for documents
and revisions. Fixed all affected queries:

- documents.ts: SELECT queries
- advanced-search.ts: Search queries
- analytics.ts: Analytics + GROUP BY
- export-import.ts: Export/import metadata
- templates.ts: Template queries + INSERT
- collections.ts: Collection document listing
- revisions.ts: Revision comparison

reactions.emoji kept unchanged (correct schema)

Tested: 448 documents successfully queried from hub.descomplicar.pt

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CLAUDE.md

@@ -6,7 +6,7 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 
 MCP server for direct PostgreSQL access to Outline Wiki database. Follows patterns established by `mcp-desk-crm-sql-v3`.
 
-**Version:** 1.3.1
+**Version:** 1.3.2
 **Total Tools:** 164 tools across 33 modules
 **Production:** hub.descomplicar.pt (via SSH tunnel)